Solar System

Jupiter Could Be the Solar System's Oldest Resident

The early former may have set up just the right conditions for Earth to take shape

Image on the original Pioneer 10 and 11 plaques

Now You Too Can Own a Piece of Space History

The engraver who inscribed Carl Sagan's and Frank Drake's 1973 message to extraterrestrials is now taking orders

Artist's rendering of what DeeDee may look like

Meet DeeDee, the Solar System's Newest Dwarf Planet (Maybe)

Though the tiny icy orb meets all the criteria, it has yet to receive the official designation

Illustration of the water plumes coming off of Enceledus

NASA Detects Microbe-Friendly Food Spouting From Saturn's Moon Enceladus

The Cassini spacecraft has detected the ingredients for life in sprays from the icy world

Uranus and its aurora

Take a Peek at the Auroras on Uranus

This composite image gives the best view yet of the seventh planet's atmospheric lights and ring

This snapshot shows Jupiter's swirling, banded atmosphere and signature vortices.

Hubble Snags Splendid Snapshot of Jupiter

The perfect photographic conditions make for a grand view of the gas giant

What a ring around Mars may have looked like

Mars May Have Had a Ring in the Past and Could Have One in the Future

The red planet's moon may have broken apart into a ring of debris and reformed several times over the planet's history

The little moon has drawn comparisons to ravioli, empanadas, and hamburger.

One of Saturn's Moons is Making Astronomers Hungry

New images of the tiny moon are drawing comparisons to a ravioli, empanadas, walnuts, hamburgers...nom, nom, nom

Pluto and its moon Charon

New Definition Would Make the Moon and Pluto Planets

A suggested update to the International Astronomical Union criteria would add over 100 planets to the solar system

What thorny ethical issues await us once we make it to Mars? A composite image of the red planet, composed by processing about 1000 Viking Orbiter red- and violet-filter images have been to provide global color coverage at a scale of 1 km/pixel.

When Humans Begin Colonizing Other Planets, Who Should Be in Charge?

The biggest threat humans pose to other worlds is what we don’t know—or what we think we know, but don’t

Watch the moon from this moonscape in Craters of the Moon State Park, Idaho.

Fifteen Perfect Spots to Watch the Total Solar Eclipse as it Crosses the U.S. This Summer

One of the most exciting astronomical event in U.S. history is happening in August

Ancient Asteroid Collision Is Still Raining Space Rocks Down on Earth

A new study shows that today's meteorites considerably differ from those of the ancient past

The bow-shaped wave on Venus

Scientists Spot Massive Wave in Venus' Atmosphere

The 6,200-mile long bow-shaped wrinkle may have been caused by gravity waves

Three of Saturn's moons photographed by the Cassini spacecraft

Earth's Moon Could Be Made From 20 Mini Moons

Our celestial buddy could have formed after multiple impacts—not one giant smash up

This collage of images from NASA's Cassini spacecraft shows Saturn's northern hemisphere and rings as viewed with four different spectral filters. Each filter is sensitive to different wavelengths of light and reveals clouds and hazes at different altitudes.

Check Out New Pictures of Saturn From Cassini’s Latest Orbit

New images of the ringed planet herald the spacecraft’s demise

The meteorite sample recovered near Perth in western Australia.

Stargazers Help Track Down a Freshly Fallen Meteorite in Western Australia

A network of cameras and smartphone apps are helping Australian researchers hunt for space rocks

Two natural color images from NASA's Cassini spacecraft show the changing appearance of Saturn's north polar region between 2012 and 2016.

The Swirling Storm Above Saturn’s North Pole Changed Colors

The years-long shift may be a sign of changing seasons

The new dwarf planet—too small to join the ranks of our solar system's eight planets—orbits the sun roughly twice as far away as Pluto.

Say Hello to Our Solar System’s Newest Dwarf Planet

Spotting the dwarf planet could help in the search for Planet Nine

After Two Years, Lost NASA Spacecraft Phones Home

Using the Deep Space Network, mission control has reestablished contact with the solar observatory STEREO-B

An artist's conception of four of the new planets, orbiting a single dwarf star. These small, rocky worlds are far closer to their star than Mercury is to our sun, but the star is smaller and cooler than our own.

Kepler Just Found 104 New Planets Outside of Our Solar System

Is anyone home?

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